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Composition for aqueous coating liquid containing polymer of n-vinyl carboxylic acid amide

A technology of vinyl carboxylic acid amide and composition, applied in the direction of coatings, devices for coating liquid on the surface, latex paint, etc., can solve the problems of low concentration of thickening and dispersing agents, undisclosed and implied drying, etc., and achieve high The effect of improving hydrophilicity and dryness

Active Publication Date: 2022-05-03
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it improves the binding properties of the positive electrode active materials to each other and to the positive electrode active material and the current collector, the concentration of the thickening dispersant in the positive electrode slurry is low, and there is no disclosure or suggestion of drying.

Method used

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  • Composition for aqueous coating liquid containing polymer of n-vinyl carboxylic acid amide
  • Composition for aqueous coating liquid containing polymer of n-vinyl carboxylic acid amide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0106] Below, the present invention is illustrated by example, but the present invention is not interpreted in any way by them.

manufacture example

[0108] Polymerization of N-vinylacetamide

[0109]Nitrogen gas vents, a mixer, a solvent drop dosing device, and a thermometer are installed in four 1-liter capacity detachable flasks, and 550 g of ion-exchanged water is added to the detachable flask, and then 50 g of N-vinyl acetamide (made by Showa Electric Co., Ltd.) is added to it. In this state, while displacing the nitrogen in the dissolved solution, stirring and heating, increasing the starting temperature of the polymerization until 51 ° C, the initiator 2,2'-azo di [N- (carboxyethyl)-2-methylpropamidine] tetrahydrate (hereinafter, VA-057) 0.04 g (total monomer ratio 0.08 mass%) is dissolved in the state of ion exchange water undergoing nitrogen degassing treatment 10 g. In this state, the polymerization reaction is carried out for 4 hours, and then, the internal temperature is raised until 80 °C and maintained for 1 hour, and then the sample is taken, and the residual monomer is determined by the HPLC method, and the re...

Embodiment 1～16

[0137] The polymer aqueous solution of 5 mass% N- vinyl acetamide obtained in the manufacturing example, and the 5 mass% concentration aqueous solution of the substance shown in Table 1 as a polysaccharide at 25 ° C in accordance with the mixing ratio of Table 1 is stirred, homogenized, and the composition of the aqueous coating liquid is modulated. Further in Example 16, after homogenization, alumina was mixed at the ratio of Table 1.

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Abstract

A constitution that can be dried efficiently when a coating is produced from an aqueous composition containing a polymer of N-vinylcarboxamide is proposed. A composition for an aqueous coating solution comprising at least a polymer of N-vinyl carboxylic acid amide, polysaccharides and water.

Description

Technical field [0001] The present invention relates to a polymer comprising N- vinylcarboxylic acid amide as a composition of a water-soluble polymer, and relates primarily to a coating comprising a water-soluble polymer, ink, adhesive, lithium-ion battery positive, negative, separator and the like in the aqueous coating fluid, the composition of the coating capable of forming a dryable coating on the construction surface. Background [0002] In all industrial fields, coating and printing technologies using water-soluble polymers are being widely used from the perspective of the environment, safety, and efficiency. In particular, the coating fluid of the water system using water-soluble polymers is excellent in the case of thin filming, and the advantages of the industry are very large. [0003] Among them, poly N-vinyl acetamide (hereinafter referred to as PNVA (registered trademark)) as a polymer of N-vinylcarboxylic acid amide also has amphiphilic properties and is easy to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D139/00B05D7/24C09D5/02C09D7/61C09D101/10C09D103/00C09D105/00
CPCB05D7/24C09D5/02C09D7/61C09D101/10C09D105/00C09D103/00C09D139/00C08K2003/0812
Inventor 菅原笃小西淳
Owner RESONAC CORPORATION